Hard Disk Physical Bad Sector Bad Sector Successfully Recovered Hard Disk Data Recovery

Case:Customer computer host hard disk, the system goes into the Windows system desktop normally.But the hard disk physical failure is lost when the data is backup.There are more than 100 G data.However, the data file cannot be copied. When copying the error, I/O error is prompted. Solution:Data recovery engineer testing, the hard disk has a…

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Glossary of Hard Disk Drive Terminology (Letter D)

Database
A collection of data stored on a computer system medium, such as a hard drive, CD-ROM, etc., that can be used for more than one purpose.

Data Lifeguard
A Western Digital exclusive data reliability feature that automatically detects, isolates and repairs problem areas on the hard drive before data loss can occur.

Data Synchronizer
An electronic circuit that uses a clock signal to synchronize data to facilitate interpretation.

Dedicated Landing Zone
The designated radial zone of the disk, usually at the inner portion of the disk, where the heads are stored to avoid contact with the data cylinders when power to the drive is off.

Defect Free
A term used to describe recording surfaces that have no detectable defects.

Defect Management
A general methodology of eliminating data errors on a recording surface by mapping out known defects on the media. The defective areas are rendered inaccessible, so that when information is written to the disk, it is stored to non-defective locations on the disk.

Desktop
A personal computer sized to fit on or under your desktop. Western Digital EIDE hard drives are designed to fit into a desktop PC.

Differential SCSI
An electrical signal configuration which uses pairs of lines for data transfer. Used primarily in applications requiring long cable lengths of up to 82 feet (25 meters).

Direct Memory Access (DMA)
A process for transferring data directly to and from main memory, without passing through the CPU. DMA improves speed and efficiency by allowing the system to continue CPU processing even while it is transferring data to/from the hard drive.

Disk
A rigid platter, usually constructed of aluminum or mylar, with a magnetic surface that allows the recording of data, that is stored inside the drive.

Disk Controller
The chip or circuit that controls the transfer of data between the disk and buffer. (See also disk drive controller and interface controller).

Disk Drive Controller
The hard disk drive controller electronics which include the disk controller and the interface controller. (See also disk controller and interface controller.)

Disk Operating System (DOS)
The computer program that controls the organization of data, files and processes on the computer.

Disk Transfer Rate
Speed at which data transfers to and from the disk media (actual disk platter); a function of the recording frequency. Typical units are bits per second (BPS), or bytes per second. Hard drives have an increasing range of disk transfer rates from the inner diameter to the outer diameter of the disk.

Distribution Channel
Electronics distributors and certain retail chains that deliver electronic goods to end users through value-added resellers and some retail stores.

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WD Introduced its New My Book and My Passport External Hard Drives with USB 3.0 Connectivity

Oct. 5, 2010 – WD today introduced its new My Passport® Essential™ portable hard drive, My Passport® Essential™ SE portable hard drive, and My Book® Essential external hard drive. All three drive families come in a variety of capacities and offer lightning-fast USB 3.0 connectivity. Highest industry capacity is another key feature for the My Book Essential drive, which is now available in 3 TB capacity, in addition to 1 and 2 TB capacities. Equipped with WD SmartWare™ visual backup software for automatic, continuous backup, these drives provide users the extra space they need to store or back up all of their digital memories, such as high-resolution photos and videos, along with music and other critical files, all in one place.

The drives not only take advantage of the latest blazing-fast USB 3.0 technology, but are also fully compatible with USB 2.0 connections for those who have yet to upgrade their computers to USB 3.0. When connected to a SuperSpeed USB 3.0 port, consumers can transfer data at speeds up to 5 Gb/s. At that rate, a two-hour HD video will transfer in as little as three minutes. The same two-hour video would take approximately 13 minutes to transfer on a USB 2.0 port.

My Passport Essential, still WD’s smallest portable drive, is available in a 500 GB capacity and comes in five fun colors – Midnight Black, Cool Silver, Real Red, Pacific Blue and Arctic White (Arctic White only available in EMEA and APAC). My Passport Essential SE portable hard drives are available in 750 GB and 1 TB capacities and come in stylish black, silver, metallic blue and metallic red colors. The pocket-sized My Passport portable hard drives are powered directly through the USB cable; no separate power supply is needed.

My Book Essential, the world’s number-one selling hard drive, also impresses with its small footprint, sleek design and high-capacity storage ranging from 1 TB up to a massive 3 TB3. The drive is compatible with both USB 2.0 and USB 3.0 ports, and uses WD SmartWare visual backup software.

“With more and more devices like the iPod touch®, iPhone®4 and other smartphones adding video-capable cameras, digital video is becoming ubiquitous. Most homes already have thousands of photos and music files, increasing the need for storage around the house. Having the extra capacity to store these files and move them around quickly is becoming a big issue for many consumers around the world, WD’s newest line of My Book and My Passport external hard drives features the latest USB 3.0 connection technology, which more than triples the speed to transfer media files, but still works with today’s USB 2.0 ports. In addition, consumers can take advantage of the highest capacity available on external hard drives with the new 3 TB My Book Essential drive.” – said Dale Pistilli, vice president of marketing for WD’s branded products group.

Features:
My Book Essential external hard drives, My Passport Essential and My Passport Essential SE portable hard drives feature:

  • Dual USB 3.0 and USB 2.0 interfaces;
  • Up to 3x faster transfer rates when compared to USB 2.0;
  • WD SmartWare software for automatic, continuous backup;
  • Password protection for privacy; and,
  • Planet-friendly packaging from recycled materials which can, in turn, also be recycled.

Capacity and Compatibility:
The My Passport Essential portable hard drive is available in 500 GB capacity. The My Passport Essential SE portable hard drive is available in 750 GB and 1 TB capacities. The My Book Essential external hard drive is available in 1 TB, 1.5 TB, 2 TB and 3 TB capacities. The drives are formatted NTFS for Windows® XP, Windows Vista®, or Windows 7. These drives require reformatting for Mac® OS® X Leopard® or Snow Leopard®.

Price and Availability
My Passport Essential portable hard drives and My Book Essential external hard drives offer a 2-year limited warranty in the U.S. and are now available at select U.S. retailers and online at wdstore.com.

MSRP for My Passport Essential portable is $99.99 USD. MSRP for My Passport Essential SE drives range from $129.99 USD to $169.99 USD. MSRP for My Book Essential drives range from $129.99 USD to $249.99 USD.

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2060-771962-002 WD PCB Circuit Board

HDD Printed circuit board (PCB) with board number 2060-771962-002 is usually used on these Western Digital hard disk drives: WD5000LMVW-11VEDS3, DCM HBKT2BKB, Western Digital 500GB USB 2.5 Hard Drive; WD5000LMVW-11VEDS3, DCM EAKT2VB, Western Digital 500GB USB 2.5 Hard Drive; WD5000LMVW-11VEDS3, DCM HHKT2BKB, Western Digital 500GB USB 2.5 Hard Drive; WD5000LMVW-11VEDS3, DCM HAKT2BBB, Western Digital 500GB…

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